Items tagged with MOISTURE Files

File size: 2.09 MB Download

Density of loose-fill insulation material exposed to cyclic humidity conditions (NT TR 565)

NT TR 565

  • This report presents a proposal for a standardised method for creep tests and the empirical framework necessary for determining the density for volume-stable state of a granulated loose-fill material as a function of the applied stress when exposed to a climate characterised as cyclic humidity conditions.

File size: 143.36 KB Download

Durability of reaction to fire – performance: Classes of fire-retardant treated wood-based products in interior and exterior end use applications (NT FIRE 054)

NT FIRE 054

  • This document prescribes the classification requirements for the durability of the reaction to fire performance of fire-retardant treated wood-based products to be used in interior and/or exterior end use conditions.

File size: 47.71 KB Download

Hygroscopic properties of fire-retardant treated wood and wood-based products (NT BUILD 504)

NT BUILD 504

  • This test method prescribes the procedure for determining the equilibrium moisture content of fire-retardant treated (FRT) wood and wood-based product samples after exposure to a standard high relative humidity condition of 90 ± 3% at 27 ± 2°C.

File size: 299.67 KB Download

Calibration of gypsum blocks for soil moisture measurements (NT BUILD 496)

NT BUILD 496

  • This test method covers the determination of calibration curves of gypsum blocks used to determine the suction pressure in soil.

File size: 161.18 KB Download

Building materials: Retention curve and pore size distribution (NT BUILD 481)

NT BUILD 481

  • This test method covers the determination of the retention curve and the pore size distribution of porous building materials and soils using a combination of pressure plate, pressure membrane and/or sand box apparatuses.

File size: 23.40 KB Download

Relative humidity: Using electrical instruments with hygroscopic sensors (NT BUILD 475)

NT BUILD 475

  • This test method is used for the determination of the relative humidity of ambient air by means of electric instruments with hygroscopic sensors. If the air temperature is also measured, the absolute moisture content can be determined.

File size: 27.21 KB Download

Relative humidity: Measuring with a dewpoint hygrometer (NT BUILD 474)

NT BUILD 474

  • This test method is used for measurement of the moisture content of air by determination of the dewpoint temperature, using a dewpoint hygrometer. The results may be recalculated and expressed as the total moisture content of the air or as partial water vapour pressure. If the air temperature is measured at the same time, the method can be used for determination of the relative humidity of the air.

File size: 43.96 KB Download

Temperature and relative humidity of air: Measuring with a thermohygrograph (NT BUILD 473)

NT BUILD 473

  • This test method covers the determination of temperature and relative humidity of ambient air by means of a thermohygrograph.

File size: 21.80 KB Download

Building materials: Degree of capillary saturation (NT BUILD 472)

NT BUILD 472

  • This test method covers the determination of the degree of capillary saturation of porous building materials. The method is not applicable to wood in its present form.

File size: 20.05 KB Download

Roofing membrane underlay (insulation material): Ageing due to increased humidity and heat (NT BUILD 434)

NT BUILD 434

  • The aim of this method is to expose insulation materials to accelerated ageing due to increased temperature and heat.

File size: 54.90 KB Download

Building materials, wood: Moisture content (NT BUILD 420)

NT BUILD 420

  • This Nordtest method describes a method for measuring the moisture content of wood. Since it utilizes wooden probes with built-in electrodes which are embedded in wooden parts of building constructions where they can be left, it is very suitable for measurements over longer periods.

File size: 22.20 KB Download

Bricks and masonry blocks: Moisture content (NT BUILD 333)

NT BUILD 333

  • This NORDTEST method describes how to measure the moisture content of bricks and masonry blocks.

File size: 40.81 KB Download

Walls in bathrooms: Watertightness and resistance to water and moisture (NT BUILD 058)

NT BUILD 058

  • The scope of this suitability of walls NORDTEST method is to evaluate the - especially walls containing wood or wood based materials - in bathrooms or other rooms with a similar exposure to water. The test is intended to simulate the effect of long-term use.

Nordtest

Nordtest is a trademark of Nordic cooperation in conformity assessment. The emphasis of Nordtest is to develop, promote and innovate Nordic test methods and pre-normative activity. Nordtest endeavours to remove technical barriers to trade and promotes the concept: “Approved once, accepted everywhere”.